[  478.772654] netdevsim netdevsim501 eni501np1: renamed from eth0
[  478.773210] netdevsim netdevsim758 eni758np1: renamed from eth1
[  478.858424] Could not find device with ifindex 2000 in netnsfd 11
[  478.858573] Could not find netns with fd: 2000
[  478.858675] Cannot link a netdevsim to itself
[  478.858788] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).